Finding a spring with lighter pull for XM15 kits

[OPBN]

I am bound and determined to replace the spring on my XM15 pump kit with a lighter spring. Does anyone know have one that is able to determine what it is so I can try and find a replacement? Along those lines, beside online any suggestions of where to get one? Would any hardware store typically carry these? I know the big box stores don't, but do the TruValue or others usually carry these?

* I know someone posted up awhile back explaining how to figure it out and to be VERY blunt I am lazy and just want someone to tell me the info. LOL. Heck, I am even going to PM XM to see if he can maybe get me the part number of the spring he uses to see if I can look it up that way.

[Cyco-Dude]

I am bound and determined to replace the spring on my XM15 pump kit with a lighter spring. Does anyone know have one that is able to determine what it is so I can try and find a replacement? Along those lines, beside online any suggestions of where to get one? Would any hardware store typically carry these? I know the big box stores don't, but do the TruValue or others usually carry these?

* I know someone posted up awhile back explaining how to figure it out and to be VERY blunt I am lazy and just want someone to tell me the info. LOL. Heck, I am even going to PM XM to see if he can maybe get me the part number of the spring he uses to see if I can look it up that way.

what spring are you talking about here, the wave spring, the bolt spring or the pump handle spring (is there one??)?

if it's a pump handle spring, can you measure the dimensions? or what are the dimensions of the parts it goes on / in and the length of the spring?

[OPBN]

Pump handle spring. I can measure it but doesn't help me with the spring weight/rate.

[Cyco-Dude]

Pump handle spring. I can measure it but doesn't help me with the spring weight/rate.

true, but it's a start.

[OPBN]

Ok, so trying to do some more digging. Measurements on the spring are 1.25 length. OD is .685, but I think anything down to .6 should probably work. The rod it fits onto is .5" diameter. Weight of the pump handle is about 4.5oz. I'm guessing something from this page would work, but at a minimum of 10pcs @ $ 8.12/pc it will get expensive quick guessing. Anyone have any input?

Trying to link, but for some reason it's not working. Tried this page and put in some parameters. and came up with 3 pages of possibilities. Main issue seems to be spring wire diameter and load rate.

http://www.leespring.com/compression_spec.asp?springType=C&forWhat=Search

Beuller?

[OPBN]

No one?

[dboggs79]

I believe the one I've been using is a green hammer spring out of a cocker. i cut it down to the point its barely touching on each end when the pump handle is all the way forward . I am using a different mount than the stock xm15 mount right now. Ill take a look at it later and see how it would work with the stock mounting block.

[OPBN]

I believe the one I've been using is a green hammer spring out of a cocker. i cut it down to the point its barely touching on each end when the pump handle is all the way forward . I am using a different mount than the stock xm15 mount right now. Ill take a look at it later and see how it would work with the stock mounting block.

Is that the one I sold you? If so, I almost pulled that spring off and switched it with one on my other kit, but forgot. I actually should have a set of old cocker springs around here. I might have to look and see if it will fit.

[dboggs79]

Yes it is. i drilled and tapped a vert asa and mounted the kit to that. Then i milled the front of the rail to match the radius of the asa. Its a little cleaner looking now. compared to the stock mount anyways. Eventually ill make something else for a mount.

[OPBN]

Pics?

And I think I have what is a stock hammer spring from an AC and it seems too small to fit on the pump arm. Will have to look at the other kit when it gets back, maybe they changed?

[dboggs79]

Illl get something up tomorrow. Or try anyhow.

[dboggs79]

Here ya go.

[OPBN]

Ooooh I like that. Does the gas through still work?

[dboggs79]

Ooooh I like that. Does the gas through still work?

Yes. I drilled and tapped the hole shallower than I really would have liked just to keep it usable.

[luke]

Here you go OPBN>>